Daimuron

Structural formula
General
Surname	Daimuron
other names	N - (4-methylphenyl) - N '- (1-methyl-1-phenylethyl) urea; Dymron; Showrone;
Molecular formula	C 17 H 20 N 2 O
Brief description	colorless, odorless needles
External identifiers / databases
EC number	610-042-7
ECHA InfoCard	100.111.848
PubChem	39238
Wikidata	Q17122729
properties
Molar mass	268.35 g mol −1
Physical state	firmly
density	1.108 g cm −3
Melting point	203 ° C
solubility	practically insoluble in water; sparingly soluble in alcohol , ethers and ketones ;
safety instructions
GHS hazard labeling ; no classification available
GHS hazard labeling ; no classification available
Toxicological data	> 5000 mg kg −1 ( LD 50 , rat , oral )
	As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions .

Daimuron is a chemical compound from the group of phenylureas and cumylamine derivatives, which was introduced in 1975 in Japan by Shōwa Denkō as a herbicide .

Extraction and presentation

Daimuron can be obtained starting from α, α-benzyldimethylamine by reaction with phosgene and p -toluidine .

use

Daimuron was originally used as a herbicide, but subsequently also as a herbicide safener in rice to reduce the phytotoxicity of bensulfuron-methyl . In the European Union and in Switzerland, Daimuron is not approved as a crop protection agent.

Individual evidence

↑ ^a ^b ^c ^d ^e ^f data sheet Daimuron at 9ele.
↑ This substance has either not yet been classified with regard to its hazardousness or a reliable and citable source has not yet been found.
↑ Patent JP7335454
↑ Thomas A. Unger: Pesticide Synthesis Handbook . William Andrew, 1996, ISBN 0-8155-1853-6 , pp. 224 ( limited preview in Google Book search).
↑ Joanna Davies, John C. Caseley: Herbicide safeners: a review . In: Pesticide Science . tape 55 , no. 11 , November 1999, p. 1043-1058 , doi : 10.1002 / (SICI) 1096-9063 (199911) 55:11 <1043 :: AID-PS60> 3.0.CO; 2-L ( PDF ).
↑ Herbicides with safener effect, which in combination with the sulfonylurea bensulfuron-methyl prevent damage to rice
↑ Hiroyoshi Omokawa, Jingrui Wu, Kriton K. Hatzios: Mechanism of Safening Action of Dymuron and Its Two Monomethyl Analogues against Bensulfuron-methyl Injury to Rice (Oryza sativa) . In: Pesticide Biochemistry and Physiology . tape 55 , no. 1 , May 1996, pp. 54–63 , doi : 10.1006 / pest.1996.0035 ( PDF ).
^ Directorate-General for Health and Food Safety of the European Commission: EU pesticide database ; Entry in the national directory of plant protection products in Switzerland ; Retrieved June 20, 2016.

[9ele-1] ↑ ^a ^b ^c ^d ^e ^f data sheet Daimuron at 9ele.

[NV-2] This substance has either not yet been classified with regard to its hazardousness or a reliable and citable source has not yet been found.

[3] Patent JP7335454

[unger-4] Thomas A. Unger: Pesticide Synthesis Handbook . William Andrew, 1996, ISBN 0-8155-1853-6 , pp. 224 ( limited preview in Google Book search).

[5] Joanna Davies, John C. Caseley: Herbicide safeners: a review . In: Pesticide Science . tape 55 , no. 11 , November 1999, p. 1043-1058 , doi : 10.1002 / (SICI) 1096-9063 (199911) 55:11 <1043 :: AID-PS60> 3.0.CO; 2-L ( PDF ).

[6] Herbicides with safener effect, which in combination with the sulfonylurea bensulfuron-methyl prevent damage to rice

[7] Hiroyoshi Omokawa, Jingrui Wu, Kriton K. Hatzios: Mechanism of Safening Action of Dymuron and Its Two Monomethyl Analogues against Bensulfuron-methyl Injury to Rice (Oryza sativa) . In: Pesticide Biochemistry and Physiology . tape 55 , no. 1 , May 1996, pp. 54–63 , doi : 10.1006 / pest.1996.0035 ( PDF ).

[8] Directorate-General for Health and Food Safety of the European Commission: EU pesticide database ; Entry in the national directory of plant protection products in Switzerland ; Retrieved June 20, 2016.